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<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="geometry.reference.algorithms.convert"></a><a class="link" href="convert.html" title="convert">convert</a>
</h4></div></div></div>
<p>
          <a class="indexterm" name="idm45246447099648"></a>
Converts one geometry to another geometry.
        </p>
<h6>
<a name="geometry.reference.algorithms.convert.h0"></a>
          <span class="phrase"><a name="geometry.reference.algorithms.convert.description"></a></span><a class="link" href="convert.html#geometry.reference.algorithms.convert.description">Description</a>
        </h6>
<p>
          The convert algorithm converts one geometry, e.g. a BOX, to another geometry,
          e.g. a RING. This only works if it is possible and applicable. If the point-order
          is different, or the closure is different between two geometry types, it
          will be converted correctly by explicitly reversing the points or closing
          or opening the polygon rings.
        </p>
<h6>
<a name="geometry.reference.algorithms.convert.h1"></a>
          <span class="phrase"><a name="geometry.reference.algorithms.convert.synopsis"></a></span><a class="link" href="convert.html#geometry.reference.algorithms.convert.synopsis">Synopsis</a>
        </h6>
<p>
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Geometry1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Geometry2</span><span class="special">&gt;</span>
<span class="keyword">void</span> <span class="identifier">convert</span><span class="special">(</span><span class="identifier">Geometry1</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">geometry1</span><span class="special">,</span> <span class="identifier">Geometry2</span> <span class="special">&amp;</span> <span class="identifier">geometry2</span><span class="special">)</span></pre>
<p>
        </p>
<h6>
<a name="geometry.reference.algorithms.convert.h2"></a>
          <span class="phrase"><a name="geometry.reference.algorithms.convert.parameters"></a></span><a class="link" href="convert.html#geometry.reference.algorithms.convert.parameters">Parameters</a>
        </h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                  <p>
                    Type
                  </p>
                </th>
<th>
                  <p>
                    Concept
                  </p>
                </th>
<th>
                  <p>
                    Name
                  </p>
                </th>
<th>
                  <p>
                    Description
                  </p>
                </th>
</tr></thead>
<tbody>
<tr>
<td>
                  <p>
                    Geometry1 const &amp;
                  </p>
                </td>
<td>
                  <p>
                    Any type fulfilling a Geometry Concept
                  </p>
                </td>
<td>
                  <p>
                    geometry1
                  </p>
                </td>
<td>
                  <p>
                    A model of the specified concept (source)
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    Geometry2 &amp;
                  </p>
                </td>
<td>
                  <p>
                    Any type fulfilling a Geometry Concept
                  </p>
                </td>
<td>
                  <p>
                    geometry2
                  </p>
                </td>
<td>
                  <p>
                    A model of the specified concept (target)
                  </p>
                </td>
</tr>
</tbody>
</table></div>
<h6>
<a name="geometry.reference.algorithms.convert.h3"></a>
          <span class="phrase"><a name="geometry.reference.algorithms.convert.header"></a></span><a class="link" href="convert.html#geometry.reference.algorithms.convert.header">Header</a>
        </h6>
<p>
          Either
        </p>
<p>
          <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
        </p>
<p>
          Or
        </p>
<p>
          <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">algorithms</span><span class="special">/</span><span class="identifier">convert</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
        </p>
<h6>
<a name="geometry.reference.algorithms.convert.h4"></a>
          <span class="phrase"><a name="geometry.reference.algorithms.convert.conformance"></a></span><a class="link" href="convert.html#geometry.reference.algorithms.convert.conformance">Conformance</a>
        </h6>
<p>
          The function convert is not defined by OGC.
        </p>
<h6>
<a name="geometry.reference.algorithms.convert.h5"></a>
          <span class="phrase"><a name="geometry.reference.algorithms.convert.supported_geometries"></a></span><a class="link" href="convert.html#geometry.reference.algorithms.convert.supported_geometries">Supported
          geometries</a>
        </h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
<col>
<col>
<col>
<col>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                </th>
<th>
                  <p>
                    Point
                  </p>
                </th>
<th>
                  <p>
                    Segment
                  </p>
                </th>
<th>
                  <p>
                    Box
                  </p>
                </th>
<th>
                  <p>
                    Linestring
                  </p>
                </th>
<th>
                  <p>
                    Ring
                  </p>
                </th>
<th>
                  <p>
                    Polygon
                  </p>
                </th>
<th>
                  <p>
                    MultiPoint
                  </p>
                </th>
<th>
                  <p>
                    MultiLinestring
                  </p>
                </th>
<th>
                  <p>
                    MultiPolygon
                  </p>
                </th>
</tr></thead>
<tbody>
<tr>
<td>
                  <p>
                    Point
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    Segment
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    Box
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    Linestring
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    Ring
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    Polygon
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    MultiPoint
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    MultiLinestring
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    MultiPolygon
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/nyi.png" alt="nyi"></span>
                  </p>
                </td>
<td>
                  <p>
                    <span class="inlinemediaobject"><img src="../../../img/ok.png" alt="ok"></span>
                  </p>
                </td>
</tr>
</tbody>
</table></div>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
            In this status matrix above: columns are source types and rows are target
            types. So a box can be converted to a ring, polygon or multi-polygon,
            but not vice versa.
          </p></td></tr>
</table></div>
<h6>
<a name="geometry.reference.algorithms.convert.h6"></a>
          <span class="phrase"><a name="geometry.reference.algorithms.convert.complexity"></a></span><a class="link" href="convert.html#geometry.reference.algorithms.convert.complexity">Complexity</a>
        </h6>
<p>
          Linear
        </p>
<h6>
<a name="geometry.reference.algorithms.convert.h7"></a>
          <span class="phrase"><a name="geometry.reference.algorithms.convert.example"></a></span><a class="link" href="convert.html#geometry.reference.algorithms.convert.example">Example</a>
        </h6>
<p>
          Shows how to convert a geometry into another geometry
        </p>
<p>
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>

<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">box</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">point_xy</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">polygon</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">adapted</span><span class="special">/</span><span class="identifier">boost_tuple</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>

<span class="identifier">BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS</span><span class="special">(</span><span class="identifier">cs</span><span class="special">::</span><span class="identifier">cartesian</span><span class="special">)</span>

<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
<span class="special">{</span>
    <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">d2</span><span class="special">::</span><span class="identifier">point_xy</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;</span> <span class="identifier">point</span><span class="special">;</span>
    <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">box</span><span class="special">&lt;</span><span class="identifier">point</span><span class="special">&gt;</span> <span class="identifier">box</span><span class="special">;</span>
    <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">&lt;</span><span class="identifier">point</span><span class="special">&gt;</span> <span class="identifier">polygon</span><span class="special">;</span>

    <span class="identifier">point</span> <span class="identifier">p1</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="number">1</span><span class="special">);</span>
    <span class="identifier">box</span> <span class="identifier">bx</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">make</span><span class="special">&lt;</span><span class="identifier">box</span><span class="special">&gt;(</span><span class="number">1</span><span class="special">,</span> <span class="number">1</span><span class="special">,</span> <span class="number">2</span><span class="special">,</span> <span class="number">2</span><span class="special">);</span>

    <span class="comment">// Assign a box to a polygon (conversion box-&gt;poly)</span>
    <span class="identifier">polygon</span> <span class="identifier">poly</span><span class="special">;</span>
    <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">convert</span><span class="special">(</span><span class="identifier">bx</span><span class="special">,</span> <span class="identifier">poly</span><span class="special">);</span>

    <span class="comment">// Convert a point to another point type (conversion of point-type)</span>
    <span class="identifier">boost</span><span class="special">::</span><span class="identifier">tuple</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">,</span> <span class="keyword">double</span><span class="special">&gt;</span> <span class="identifier">p2</span><span class="special">;</span>
    <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">convert</span><span class="special">(</span><span class="identifier">p1</span><span class="special">,</span> <span class="identifier">p2</span><span class="special">);</span> <span class="comment">// source -&gt; target</span>

    <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">dsv</span><span class="special">;</span>
    <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span>
        <span class="special">&lt;&lt;</span> <span class="string">"box: "</span> <span class="special">&lt;&lt;</span> <span class="identifier">dsv</span><span class="special">(</span><span class="identifier">bx</span><span class="special">)</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span>
        <span class="special">&lt;&lt;</span> <span class="string">"polygon: "</span> <span class="special">&lt;&lt;</span> <span class="identifier">dsv</span><span class="special">(</span><span class="identifier">poly</span><span class="special">)</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span>
        <span class="special">&lt;&lt;</span> <span class="string">"point: "</span> <span class="special">&lt;&lt;</span> <span class="identifier">dsv</span><span class="special">(</span><span class="identifier">p1</span><span class="special">)</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span>
        <span class="special">&lt;&lt;</span> <span class="string">"point tuples: "</span> <span class="special">&lt;&lt;</span> <span class="identifier">dsv</span><span class="special">(</span><span class="identifier">p2</span><span class="special">)</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span>
        <span class="special">;</span>

    <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
<span class="special">}</span>
</pre>
<p>
        </p>
<p>
          Output:
        </p>
<pre class="programlisting">box: ((1, 1), (2, 2))
polygon: (((1, 1), (1, 2), (2, 2), (2, 1), (1, 1)))
point: (1, 1)
point tuples: (1, 1)
</pre>
<h6>
<a name="geometry.reference.algorithms.convert.h8"></a>
          <span class="phrase"><a name="geometry.reference.algorithms.convert.see_also"></a></span><a class="link" href="convert.html#geometry.reference.algorithms.convert.see_also">See
          also</a>
        </h6>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
              <a class="link" href="assign/assign.html" title="assign">assign</a>
            </li></ul></div>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
            convert is modelled as source -&gt; target (where assign is modelled
            as target := source)
          </p></td></tr>
</table></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="right"><div class="copyright-footer">Copyright © 2009-2021 Barend Gehrels,
      Bruno Lalande, Mateusz Loskot, Adam Wulkiewicz, Oracle and/or its affiliates<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
</div></td>
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